Varicocele is more common in normal adult males, with about 10-15 out of 100 normal males suffering from varicocele, but not all require surgery. Surgery is required in the following cases: 1) severe varicocele, where tortuous and dilated spermatic veins or testicular atrophy can be observed above the scrotum and testicles when the patient is standing; 2) mild to moderate varicocele, where symptoms such as scrotal dampness, testicular pain, and swelling are present, and surgery can be considered if symptoms recur; 3) mild to moderate varicocele combined with infertility If the varicocele is caused by poor semen quality, surgery is required for this condition. The first two types of laparoscopic high ligation or open high ligation will cut off all the spermatic cords except the vas deferens and cannot preserve the testicular arteries and lymphatic vessels in the spermatic cord, which will have a greater impact on the testicular function after surgery. Microscopic spermatic cord ligation can raise the spermatic cord under the external ring, and under more magnification, the testicular artery and lymphatic vessels will be found well preserved within the spermatic cord, and the dilated veins will be ligated, which will be beneficial to the recovery of testicular function after surgery, and usually, the natural conception rate can be increased by more than 40% after microscopic spermatic cord ligation, and some reports reach more than 50%.